Cup o'tea: Look at this chart

[xzorro]

http://www.sitedynamo.com/cwsv3/trial530369/MiscFiles/TeaTime3.pdf

[gpond]

This certainly is, and has been, a nagging question:
http://goldismoney.info/forums/showthread.php?t=10767

[gpond]

See xzorro's chart above. This is the current version of the one I posted. Teacup and handle is, perhaps, underway.